18 lines
559 B
HTML
18 lines
559 B
HTML
<html>
|
|
<head><style>div.b{background-color: darksalmon;}</style></head>
|
|
<body>
|
|
<div id="a" class="a">a</div>
|
|
<div id="a" class="a">a</div>
|
|
<div id="a" class="a">a</div>
|
|
<div id="a" class="a">a</div>
|
|
<div id="a" class="a">a</div>
|
|
<div id="a" class="a">a</div>
|
|
</body><script type="text/javascript">
|
|
d = 0;
|
|
setInterval(function () {
|
|
elems = document.querySelectorAll('.a')
|
|
for(elem in elems) { elems[elem].classList.add('b')}
|
|
}, 500);
|
|
</script>
|
|
|
|
</html> |